EP1984071B1 - Catheter de neurostimulation - Google Patents

Catheter de neurostimulation Download PDF

Info

Publication number
EP1984071B1
EP1984071B1 EP07730823A EP07730823A EP1984071B1 EP 1984071 B1 EP1984071 B1 EP 1984071B1 EP 07730823 A EP07730823 A EP 07730823A EP 07730823 A EP07730823 A EP 07730823A EP 1984071 B1 EP1984071 B1 EP 1984071B1
Authority
EP
European Patent Office
Prior art keywords
tube
catheter
base
layer
catheter according
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP07730823A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1984071A1 (fr
Inventor
Jean-Luc Carrez
Valérie DALLE
Pierrick Guyomarc'h
Claire Dulong
Cécile GADENNE
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Vygon SA
Original Assignee
Vygon SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Vygon SA filed Critical Vygon SA
Priority to PL07730823T priority Critical patent/PL1984071T3/pl
Publication of EP1984071A1 publication Critical patent/EP1984071A1/fr
Application granted granted Critical
Publication of EP1984071B1 publication Critical patent/EP1984071B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N1/00—Electrotherapy; Circuits therefor
    • A61N1/02—Details
    • A61N1/04—Electrodes
    • A61N1/05—Electrodes for implantation or insertion into the body, e.g. heart electrode
    • A61N1/0551—Spinal or peripheral nerve electrodes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/02—Contact members
    • H01R13/025—Contact members formed by the conductors of a cable end
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R2201/00—Connectors or connections adapted for particular applications
    • H01R2201/12—Connectors or connections adapted for particular applications for medicine and surgery

Definitions

  • a neurostimulation catheter comprising a flexible tube of non-electrically conductive material having a rounded distal end and having an electrical conductor extending along the length of the tube for conducting electrical stimulation current from one end to the other of the tube.
  • Neurostimulation allows the practitioner to ensure that the catheter has achieved the desired goal by reacting the plexus block with electrical excitation from the distal end of the catheter.
  • the conductor may consist of a metal mandrel inserted into the tube lumen and which must be removed after insertion of the tube to release the lumen before commissioning of the catheter, as described for example in the publications GB 88 03 153 , From 1 807 487 and CA 2 260 080 .
  • the driver can also be permanently incorporated into the tube to allow stimulation at any time, such as described for example in publications DE 101 00976 , US 5,081,990 .
  • the invention aims to avoid these disadvantages.
  • the conductor by at least one layer of an electrically conductive material applied to the outer face of the side wall of the tube and insulated by a non-conductive coating applied to the layer, said layer conductive forming at the distal end of the tube a distal ring which conforms to the shape of the rounding of the distal end of the tube and which is not covered by the insulating coating of the layer so as to constitute a neurostimulation contact, and said conductive layer forming at the proximal end of the tube a proximal ring which is not covered by the insulating coating to make an electrical connection.
  • an ink used for the silver tracing of electric tracks with a pen and a resistant acrylic coating also applied to the pen; alternatively an epoxy adhesive containing silver particles, or an ink conductive without binder which in drying leaves only the metal.
  • the application is done in a pen, or preferably by screen printing or pad printing.
  • the catheter shown in the figures is constituted by a flexible tube (1) of non-electrically conductive material on the outer face of which has been applied along a line (2) a layer (A) of a conductive material of the electricity extending from the proximal end (1a) to the distal end (1b) of the tube (1) and which is coated locally with a layer of insulating material (B).
  • the conductive layer forms two rings (3,4) of a few millimeters in length and the insulating coating (B) was stopped before these rings.
  • One of the rings will be used to power the conductive coating and the other ring will be used to transmit the electrical excitation to the nerves (plexus block) where we want to stimulate or locate the nerves.
  • the human body must not be in contact with the driver, hence the presence of an insulating coating (made of plastic and of solvent for example) on the conductive line, so that it is completely covered.
  • an insulating coating made of plastic and of solvent for example
  • the distal conductive ring as an electrical contact, is a good solution for neurostimulating because it is not bulky (thickness 15 to 20 microns), and therefore does not generate large thickness that could hinder the passage of the catheter in a needle ; it makes it possible to use a catheter with an unobstructed and unrestricted distal hole, which is better for the flow rate. This also avoids having to push hard on the injection syringe.
  • the ring may marry the shape of the rounded (atraumatic).
  • the invention also relates to embodiments of a base to be mounted on the proximal end of a neurostimulation catheter, in particular a catheter according to the invention, equipped with means for holding the catheter in the base and means to provide an electrical connection between a power supply conductor and the conductive coating of the catheter, and adapted to connect the catheter with a device for supplying a solution, for example an injection syringe.
  • the base comprises a tubular body (10) on one end (10a) of which can be screwed a nut (11) so as to ensure the compression of an elastomeric sleeve (12), housed in the nut (embodiment of Figures 1 to 7 ) or in the tubular body (realization of Figures 8 to 12 ) and traversed by the catheter tube when it is introduced into the base; the other end (10b) of the tubular body has a conical inlet passage (taper luer) for connecting the tip of a solution supply device.
  • a conical inlet passage taper luer
  • the nut and the sleeve cooperate to provide lateral compression of the catheter maintaining the catheter in the base.
  • the base has a lateral hole (13) which is formed in the tubular body (embodiment of Figures 1 to 7 ) or in the nut (realization of Figures 8 to 12 ) for the passage of a wire (14) or a plug (15) of an electrical conductor (9) to the contact of the catheter tube.
  • a slotted and resilient metal tube (5) is slipped over the proximal end of the catheter tube with one or more spring tongues (6) cut into the tube and formed into S, so as to be protruding at the inside and outside the tube.
  • this tube can be in vis-à-vis the lateral hole (13) of the base.
  • the catheter tube is pushed into the base until it stops in the base.
  • the tongue or tongues of the metal tube bear against the proximal ring of the conductive layer to ensure electrical contact.
  • the catheter tube is blocked in the base by the compression sleeve (7) tightened by the nut.
  • the bare electrical wire (9) and covered with a metal ring (11) is pushed into the lateral hole (13) and blocked. It compresses the tab externally and ensures the passage of the current of the wire to the proximal ring.
  • the ring can be pushed in force, or fitted and maintained by a screw-nut type system, the lateral hole of the base is then threaded externally and the ring is equipped with a screw nut.
  • the wire is removable.
  • the electrical transmission between the catheter and the power supply wire is achieved by direct lateral contact between the catheter conductive coating and the wire.
  • the proximal end of the catheter tube which comprises the outer conductive layer (A) but which is devoid of the insulating layer, is threaded freely and directly into the base (10), until a stop (19) and is locked in position, by a compression sleeve (12) which is compressed by screwing a nut (8) on the base, as before.
  • the base comprises a chamber (15) for receiving the sleeve terminated at its proximal end by a conical wall (16).
  • An anti-friction ring (17) can be put in place in the base if there is too much friction between the nut and the sleeve during screwing in compression, to prevent the sleeve from twisting.
  • the base, the sleeve and the nut are pre-assembled (without tightening) before introduction of the catheter into the base.
  • the entire catheter length introduced into the base is conductive. Beyond the base, the catheter is covered with the electrically insulating coating (B).
  • the nut is screwed to compress the sleeve and block the catheter.
  • the seal is obtained at a proximal portion of the base.
  • the liquid pushed into the female luer of the base reaches the catheter. If liquid is introduced between the catheter and the side wall of the lumen (20), it is collected in a very small chamber (18) whose sealing is ensured by the sleeve (12) compressed against the cone (16) of the chamber (15) and against the catheter.
  • the conductive plug (19) of the electrical line is introduced which will bring the electric current into a lateral hole (13) of the nut.
  • the plug comes into contact with the conductive outer surface of the catheter. A clipping of the base (21) of this plug in the hole of the nut is possible.
  • a silver-based conductive ink is preferably used.
  • Silver is an ideal material for its conductivity (its resistivity is very low) and its flexibility (it follows without problem the curvatures of the tube).
  • a resistance of approximately 8 ohms is obtained.
  • This ink can be a mixture of solvent and very fine silver powder, for a very good electrical conductivity.
  • the application can be performed by screen printing, pad printing or even inkjet. These methods of application are not limiting.

Landscapes

  • Health & Medical Sciences (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Animal Behavior & Ethology (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Cardiology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Neurology (AREA)
  • Neurosurgery (AREA)
  • Radiology & Medical Imaging (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Media Introduction/Drainage Providing Device (AREA)
  • Materials For Medical Uses (AREA)
  • Electrotherapy Devices (AREA)
  • Magnetic Treatment Devices (AREA)
EP07730823A 2006-02-02 2007-01-15 Catheter de neurostimulation Active EP1984071B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL07730823T PL1984071T3 (pl) 2006-02-02 2007-01-15 Cewnik do neurostymulacji

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0600948A FR2896698B1 (fr) 2006-02-02 2006-02-02 Catheter de neurostimulation et son embase
PCT/FR2007/000064 WO2007088256A1 (fr) 2006-02-02 2007-01-15 Catheter de neurostimulation

Publications (2)

Publication Number Publication Date
EP1984071A1 EP1984071A1 (fr) 2008-10-29
EP1984071B1 true EP1984071B1 (fr) 2009-12-09

Family

ID=37022960

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07730823A Active EP1984071B1 (fr) 2006-02-02 2007-01-15 Catheter de neurostimulation

Country Status (11)

Country Link
US (1) US8798766B2 (https=)
EP (1) EP1984071B1 (https=)
JP (1) JP5146324B2 (https=)
AT (1) ATE451139T1 (https=)
DE (1) DE602007003689D1 (https=)
DK (1) DK1984071T3 (https=)
ES (1) ES2333484T3 (https=)
FR (1) FR2896698B1 (https=)
PL (1) PL1984071T3 (https=)
PT (1) PT1984071E (https=)
WO (1) WO2007088256A1 (https=)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2995215B1 (fr) 2012-09-11 2015-07-24 Vygon Systeme de blocage amovible d'un catheter
CN105007957B (zh) 2012-10-31 2017-12-01 恩克普森有限公司 具有增强的回波产生性的涂层的医疗装置
US9148676B2 (en) * 2012-12-04 2015-09-29 Sony Corporation Broadcast transition channel
US9867963B2 (en) 2014-06-17 2018-01-16 Avent, Inc. Needle hub for over-the-needle catheter
US10987129B2 (en) 2015-09-04 2021-04-27 Medos International Sarl Multi-shield spinal access system
US11672562B2 (en) 2015-09-04 2023-06-13 Medos International Sarl Multi-shield spinal access system
US12150636B2 (en) 2015-09-04 2024-11-26 Medos International Sárl Surgical instrument connectors and related methods
US11744447B2 (en) 2015-09-04 2023-09-05 Medos International Surgical visualization systems and related methods
CN113143355A (zh) 2015-09-04 2021-07-23 美多斯国际有限公司 多护罩脊柱进入系统
ES1154983Y (es) * 2016-03-23 2016-07-18 Barquero Bartolome Lajarin Dispositivo de aguja para bloqueo nervioso
DE102016110379A1 (de) * 2016-06-06 2017-12-07 Pajunk GmbH Medizintechnologie Unipolar-Kanüle
WO2020182958A1 (en) * 2019-03-13 2020-09-17 Medos International Sàrl Multi-shield spinal access system
US20230263588A1 (en) * 2021-11-17 2023-08-24 Spr Therapeutics, Inc. Apparatus and method for positioning, implanting and using a stimulation lead

Family Cites Families (25)

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Publication number Priority date Publication date Assignee Title
DE1807487A1 (de) 1968-11-07 1970-06-11 Solinger Tuerschliesser Fabrik Hydraulischer Tuerschliesser
DE8803153U1 (de) 1988-03-09 1988-06-23 B. Braun Melsungen Ag, 3508 Melsungen Kathetervorrichtung für die Plexusanästhesie
US5006119A (en) * 1989-05-25 1991-04-09 Engineering & Research Associates, Inc. Hollow core coaxial catheter
US5081990A (en) 1990-05-11 1992-01-21 New York University Catheter for spinal epidural injection of drugs and measurement of evoked potentials
US5275597A (en) * 1992-05-18 1994-01-04 Baxter International Inc. Percutaneous transluminal catheter and transmitter therefor
US5720718A (en) * 1992-08-12 1998-02-24 Vidamed, Inc. Medical probe apparatus with enhanced RF, resistance heating, and microwave ablation capabilities
US5681514A (en) * 1995-06-07 1997-10-28 Sulzer Intermedics Inc. Method for making an implantable conductive lead for use with a cardiac stimulator
US5904709A (en) * 1996-04-17 1999-05-18 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Microwave treatment for cardiac arrhythmias
CA2260080A1 (en) 1998-07-24 1999-02-04 Ban C.H. Tsui Devices, systems and methods for determining proper placement of epidural catheters
US6208881B1 (en) * 1998-10-20 2001-03-27 Micropure Medical, Inc. Catheter with thin film electrodes and method for making same
SE9803692D0 (sv) * 1998-10-27 1998-10-27 Pacesetter Ab A connector for a heart stimulator
US7047082B1 (en) * 1999-09-16 2006-05-16 Micronet Medical, Inc. Neurostimulating lead
US6741892B1 (en) * 2000-03-10 2004-05-25 Advanced Bionics Corporation Movable contact locking mechanism for spinal cord stimulator lead connector
JP3369157B2 (ja) * 2000-11-01 2003-01-20 マイクロネット メディカル インコーポレイテッド 医療用リードの製造方法
US6916306B1 (en) * 2000-11-10 2005-07-12 Boston Scientific Scimed, Inc. Steerable loop structures for supporting diagnostic and therapeutic elements in contact with body tissue
US6912423B2 (en) * 2000-12-15 2005-06-28 Cardiac Pacemakers, Inc. Terminal connector assembly for a medical device and method therefor
JP2002191571A (ja) * 2000-12-26 2002-07-09 Hisayuki Mukai 電極カテーテル
DE10100976C2 (de) 2001-01-11 2003-10-02 Horst Pajunk Katheter für die Nervenblockade
GB0104982D0 (en) * 2001-02-28 2001-04-18 Gill Steven Electrode
JP4227366B2 (ja) * 2002-06-21 2009-02-18 イーメックス株式会社 電気導通ライン
US7130700B2 (en) * 2002-11-19 2006-10-31 Medtronic, Inc. Multilumen body for an implantable medical device
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US20050131513A1 (en) 2003-12-16 2005-06-16 Cook Incorporated Stent catheter with a permanently affixed conductor
US20050150763A1 (en) * 2004-01-09 2005-07-14 Butters Colin W. Biosensor and method of manufacture
GB0408392D0 (en) * 2004-04-15 2004-05-19 Pilkington Plc Electrically heated window

Also Published As

Publication number Publication date
DK1984071T3 (da) 2010-01-25
DE602007003689D1 (de) 2010-01-21
US8798766B2 (en) 2014-08-05
JP2009525099A (ja) 2009-07-09
WO2007088256A1 (fr) 2007-08-09
EP1984071A1 (fr) 2008-10-29
US20090012578A1 (en) 2009-01-08
PL1984071T3 (pl) 2010-05-31
ES2333484T3 (es) 2010-02-22
JP5146324B2 (ja) 2013-02-20
FR2896698A1 (fr) 2007-08-03
PT1984071E (pt) 2010-01-25
ATE451139T1 (de) 2009-12-15
FR2896698B1 (fr) 2008-09-19

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